GB8922142D0 - Trapdoors - Google Patents

Trapdoors

Info

Publication number
GB8922142D0
GB8922142D0 GB898922142A GB8922142A GB8922142D0 GB 8922142 D0 GB8922142 D0 GB 8922142D0 GB 898922142 A GB898922142 A GB 898922142A GB 8922142 A GB8922142 A GB 8922142A GB 8922142 D0 GB8922142 D0 GB 8922142D0
Authority
GB
United Kingdom
Prior art keywords
trapdoors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB898922142A
Other versions
GB2223677A (en
GB2223677B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JONES WILLIAM P
Original Assignee
JONES WILLIAM P
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JONES WILLIAM P filed Critical JONES WILLIAM P
Publication of GB8922142D0 publication Critical patent/GB8922142D0/en
Publication of GB2223677A publication Critical patent/GB2223677A/en
Application granted granted Critical
Publication of GB2223677B publication Critical patent/GB2223677B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/12—Hinged dampers
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/01—Trap-doors
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Special Wing (AREA)
GB8922142A 1988-10-03 1989-10-02 Trapdoors Expired - Lifetime GB2223677B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888823135A GB8823135D0 (en) 1988-10-03 1988-10-03 Trapdoors

Publications (3)

Publication Number Publication Date
GB8922142D0 true GB8922142D0 (en) 1989-11-15
GB2223677A GB2223677A (en) 1990-04-18
GB2223677B GB2223677B (en) 1992-01-15

Family

ID=10644607

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888823135A Pending GB8823135D0 (en) 1988-10-03 1988-10-03 Trapdoors
GB8922142A Expired - Lifetime GB2223677B (en) 1988-10-03 1989-10-02 Trapdoors

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888823135A Pending GB8823135D0 (en) 1988-10-03 1988-10-03 Trapdoors

Country Status (1)

Country Link
GB (2) GB8823135D0 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2849459B1 (en) * 2002-12-30 2006-11-24 Georges Harnois LOCAL BURNER
GB2491493B (en) * 2012-06-21 2014-01-15 John Golding Door for a domestic dwelling
CN103893926B (en) * 2014-03-25 2016-03-02 美信佳集团建设有限公司 The fire prevention of skyscraper staircase grips door
BE1023581B1 (en) * 2015-08-25 2017-05-09 Teplux Bvba DEVICE FOR COVERING A STAIRWAY

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344505A (en) * 1980-08-14 1982-08-17 Waters E Eugene Insulation cap for disappearing stairwells
GB2099898B (en) * 1981-05-22 1985-10-23 Redgwick Anthony James Door assembly
DE8313824U1 (en) * 1983-05-10 1983-11-10 Stöbich Brandschutz GmbH, 3380 Goslar FIRE CLOSURE FOR A CEILING BREAKTHROUGH OF A PATERNOSTER CONVEYING SYSTEM

Also Published As

Publication number Publication date
GB2223677A (en) 1990-04-18
GB8823135D0 (en) 1988-11-09
GB2223677B (en) 1992-01-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19961002